<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Index-Page</title>
    <style>
        body{
            background: skyblue;
            padding: 50px;
        }
    </style>
</head>
<body>
    <h1 style="margin: 20px auto;color: gold;">It is working.</h1>
    <h1 style="margin: 20px auto;color: cyan;">hello,user from {{ ip }} .</h1>
</body>
</html>
